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NeilBrown authored
Three separate places in md.c check if the number of active writes is zero and, if so, sets mddev->in_sync. There are a few differences, but there shouldn't be: - it is always appropriate to notify the change in sysfs_state, and there is no need to do this outside a spin-locked region. - we never need to check ->recovery_cp. The state of resync is not relevant for whether there are any pending writes or not (which is what ->in_sync reports). So create set_in_sync() which does the correct tests and makes the correct changes, and call this in all three places. Any behaviour changes here a minor and cosmetic. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>
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